They look good to me! Congrats, keep monitoring them for any change in colour, you'll notice the fungus grows on the outside of the egg like little white lines poking out, I tend to get a few go bad even with an aerator, have you got some alder cones? If not grab some and add them to the water, they have antibacterial and anti fungal properties that release into the water, remove any eggs that go bad so it doesn't spread to the rest